利用空间坐标定义时空坐标
Using pulsars to define space-time coordinates
摘要：
完全相对论坐标已经被提议用于（相对论地）运行“GPS”系统。这些坐标是由四个“卫星”（时钟）发出的光信号的到达时间。将四个受控时钟发出的信号替换为四个卫星发出的信号，定义了一个精度较低但在整个太阳系都有效的坐标系。我们在这里精确地定义了这个新的坐标系，通过选择四个特定的事件和一个特定的事件作为坐标的原点。
英文摘要：
Fully relativistic coordinates have been proposed for (relativistically) running a "GPS" system. These coordinates are the arrival times of the light signals emitted by four "satellites" (clocks). Replacing the signals emitted by four controlled clocks by the signals emitted by four pulsars defines a coordinate system with lower accuracy, but valid across the whole Solar System. We here precisely define this new coordinate system, by choosing four particular pulsars and a particular event as the origin of the coordinates.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
